Home / 161,972.26-243,028.56-87,004.94

Finding the Fourth Proportional to 161,972.26, 243,028.56 and 87,004.94

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Solution

The fourth proportional to 161,972.26, 243,028.56 and 87,004.94 is: 130,545.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,972.26 : 243,028.56 = 87,004.94 : x
  2. Step 2: Convert to fraction form
    161,972.26/243,028.56 = 87,004.94/x
  3. Step 3: Cross multiply
    161,972.26x = 243,028.56 × 87,004.94
  4. Step 4: Simplify right side
    161,972.26x = 21,144,683,630.92
  5. Step 5: Solve for x
    x = 21,144,683,630.92/161,972.26
  6. Step 6: Final answer
    x = 130,545.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.